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Bovine serum albumin (BSA or "Fraction V") is a serum albumin protein derived from cows. It is often used as a protein concentration standard in lab experiments. The nickname "Fraction V" refers to albumin being the fifth fraction of the original Edwin Cohn purification methodology that made use of differential solubility characteristics of plasma proteins.
Besides BSA, fetal bovine serum is a rich source of growth and attachment factors, lipids, hormones, nutrients and electrolytes necessary to support cell growth in culture. It is typically added to basal cell culture medium, such as DMEM or RPMI , at a 5–10% concentration.
Immunofluorescence (IF) is a light microscopy-based technique that allows detection and localization of a wide variety of target biomolecules within a cell or tissue at a quantitative level. The technique utilizes the binding specificity of antibodies and antigens .
In summary, in order to find a standard curve, one must use varying concentrations of BSA (Bovine Serum Albumin) [2] in order to create a standard curve with concentration plotted on the x-axis and absorbance plotted on the y-axis. Only a narrow concentration of BSA is used (2-10 ug/mL) in order to create an accurate standard curve. [23]
The protein substance from the initial abstract is inspected with a 2-D Quant Kit. The initial abstract is diluted to 50 ng/mL combined with 0.1% SDS, 0.1% 2-ME, 0.1 M PBS (pH 7.4), 0.1% BSA, and 0.1% Tween 20, and it is deposited for ELISA at 4 °C playing as the calibration standard solution. [8]
This article contains a list of the most studied restriction enzymes whose names start with Bsa to Bso inclusive. It contains approximately 90 enzymes. The following information is given: Enzyme: Accepted name of the molecule, according to the internationally adopted nomenclature [1] [2], and bibliographical references.
2 Immunofluorescence on AB9 cells. 3 Functional Assays in AB9 ... Followed with multiple washes of 1X PBS and blocked in room temperature for one hour in 1% BSA in ...
Western blot - Wikipedia